All VDIs are unable to access a specific sites

Question

Hello, about a week ago all of our VDIs started having issues accessing https://www.whitepages.com/ I've attached an image of the message that shows up when trying to access the website. When I ping the URL from the VDI it times out, but when I do the same from my local device the ping is successful. I've seen some old post about this same issue, where they mention that the block is of Azure IPs from White pages end due to usage, but there was never any resolution on those posts. Does anyone know what I can do to get this sorted out?

Answer 1

Hi Marcio Manrique,

Is there any solution that doesn't require creation of a new subnet and Nat Gateway?

It could be worthwhile to reach out to Whitepages support to confirm if their system is blocking Azure IP ranges.

Go to Azure Portal → Create a NAT Gateway

Assign:

• A static Public IP Address
• A Virtual Network (new or existing)
• A Subnet to associate with the NAT Gateway (you may need to move your AVD session hosts here)

Move AVD Hosts to a NAT-enabled Subnet

If you already have AVD hosts in a subnet, and cannot use NAT there, create a new subnet, configure NAT on it, and move the AVD hosts to this subnet.

You cannot apply NAT Gateway to existing subnets if using basic load balancers or conflicting network settings.

After NAT is applied, all outbound traffic from AVDs will share the same public IP. and test the access to https://www.whitepages.com/

https://learn.microsoft.com/en-us/azure/nat-gateway/nat-overview

https://learn.microsoft.com/en-us/azure/nat-gateway/manage-nat-gateway?tabs=manage-nat-portal

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